蘿蘋發現一個觸及自身痛處的震驚事實。勒索國務大臣的人變成調查案的主嫌，但蘿蘋跟史崔克相信肯定還有共犯。

While visiting his family in Cornwall, Strike is approached by Anna Phipps, who seeks his help finding her mother who went missing in 1974.

While Strike deals with a difficult family matter, a rogue Robin locates and goes after two key -- and potentially dangerous -- suspects.